The Droplet Junction Chip with header is a glass microfluidic device designed for generating droplets. The Droplet Junction Chip is available with attached header for ejection of droplets into a bulk liquid. This is useful for generation of emulsions since it reduces the likelihood of droplet coalescence, which can be an issue with some fluids on transfer from chip to tubing. In this configuration, the Droplet Junction Chip with Header is used with the Linear Connector 4-way (Part No. 3000024) to generate droplets on the X-junction and eject from the edge of the chip. Droplets can be collected using the Droplet Collection Module (Part No. 3200112). An additional benefit of this collection method is that droplets can be cured with UV light immediately after generation.